Oil Distributor on Right Camshaft Adjustment Unit

Oil Distributor on Right Camshaft Adjustment Unit

Removal
Removal of the camshaft adjustment unit distributor is described separately from installation.
Right Camshaft Adjustment Unit






Note: After releasing, oil drips out of the solenoid valve.

Have a cleaning cloth ready.
Make sure no oil drips onto the belt drive. Remove any remnants of oil immediately with cleaning cloth.
Release solenoid valve with special tool 11 6 420.





Feed timing chain out of camshaft adjustment unit distributor.
Secure timing chain to prevent it from sliding down.

Note: Screw (1) with sealing ring.

Release screws on camshaft adjustment unit distributor.





Note: If the camshaft adjustment unit distributor and the seal (three plain compression rings) are worn, the removal operation may be awkward.

By moving it back and forth, carefully detach distributor straight from camshaft.

Note: The camshaft adjustment unit distributor is sealed on the inside with plain compression rings.

Traces of wear on the distributor plain compression rings up to a depth of approx. 0.1 to 0.2 mm are normal.
If there is pitting or scoring in the longitudinal direction, the plain compression rings and the distributor must be replaced.





If necessary, remove seal (three plain compression rings).

Note: The plain compression rings have catches at the joint.

Press compression ring (1) upwards as far as possible and remove catch.
Carefully pull compression ring (1) apart and remove towards front.





Installation:
If necessary, replace seal (three plain compression rings).
Carefully pull compression ring (1) apart and install.
Press compression ring (1) upwards as far as possible and install catch.





Note: The gasket is secured in a groove on the camshaft bearing cover and over the non-return valve (1).

The non-return valve (1) is "inserted" in the cylinder head and can fall out if the gasket is not fed out carefully.
Carefully feed out gasket.





If necessary, remove non-return valve.
Insert commercially available screw with M10 x 1 thread or special tool 13 5 132 as and extraction aid by hand in non-return valve (1) and carefully remove.





Installation:
Replace sealing ring (1) on non-return valve.

Caution: Check installed direction.

An incorrectly installed non-return valve will result in engine damage. Install non-return valve with M10 x 1 thread facing outwards.

Installation
Installation of the camshaft adjustment unit distributor is described separately from removal.





Check correct installation position of non-return valve (1).
Feed in new gasket so that it is secured in groove on camshaft bearing cover and over non-return valve (1).





Make sure that contact points on plain compression rings snap into place.
Align contact points of compression rings upwards.





Make sure that gasket is secured in groove on camshaft bearing cover.





Apply a light coat of oil to camshaft adjustment unit distributor and plain compression rings.
Carefully push on camshaft adjustment unit distributor so that it is straight.





Note: Only screw (1) with sealing ring.
Replace sealing ring on screw (1).
Install and tighten down screws.





Feed timing chain onto camshaft adjustment unit distributor.
Insert solenoid valve and tighten down with special tool 11 6 420.
Tightening Torque, refer to Engine, Specifications.

Install right camshaft adjustment unit. Right Camshaft Adjustment Unit
Assemble engine.